Answer
P-value $=0.006\ltα=0.05$. Reject the null hypothesis.
There is enough evidence to conclude that the daily volume of General Electric Corporation stock is greater than that of Pfizer.
Work Step by Step
$H_0:~µ_d=0$ versus $H_1:~µ_d\gt0$
In MINITAB, enter the Volume of GE values in C1 and the Volume of Pfizer values in C2.
Select Stat -> Basic Statistics -> Paired-t
Select "Each sample is in a column"
In Sample 1 enter C1 and in Sample 2 enter C2
Click in Options. Enter 95 in Confidence level, 0 in Hypothesized difference. In "Alternative hypothesis" select "Difference $\gt$ hypothesized difference". Click OK.
Click OK.
